Fatal cases of lung and breast cancer have drastically reduced and led to the drop in cancer deaths in the United States in the last several years, according to data by the American Cancer Society Wednesday.
In all, more than a million deaths have been avoided since cancer mortality first began to decline at the start of the 1990s, said the Cancer Statistics 2012 report based on US government health data and statistical models.
AdvertisementBut while deaths from four major cancers -- lung, colorectum, breast, and prostate -- continued to drop in the past decade, other potentially lethal cancers have been on the rise, including throat and mouth cancers linked to human papillomaviruses, a common sexually transmitted disease.
Cancers of the pancreas, liver, thyroid, and kidney and melanoma of the skin have also been mounting over the past 10 years.
Some of those may be tied to the obesity epidemic in the United States as well as better early detection practices for certain cancers, the report suggested.
For the most recent four years of the study, 2004-2008, overall cancer incidence rates declined 0.6 percent per year for men and were stable in women.
Cancer death rates for that period dropped 1.8 percent per year in men and 1.6 percent annually in women.
The biggest contributors to the drop in fatalities were lung cancer, which accounted for 40 percent of the decline in deaths among men and breast cancer, which made up 34 percent of the fall in deaths among women.
From 1999 to 2008, cancer deaths have dropped in every racial group except for American Indians and Alaska natives, among whom the rates have stayed steady, it added.
This coming year, the United States can expect a total of 1.6 million new cancer diagnoses and 577,190 deaths from cancer, according to the report's projections.
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